Purpose of review This review provides an assessment of biomarkers in sarcoidosis, aiming to address the need for improved diagnostic, prognostic and management tools. Sarcoidosis presents diagnostic challenges, necessitating the search for reliable biomarkers to guide clinical decisions. Recent findings Established biomarkers such as serum angiotensin-converting enzyme (ACE) and serum interleukin-2 receptor (sIL-2R) have limitations in sensitivity and specificity. FDG-PET/CT imaging shows promising results in assessing disease activity and guiding immunosuppression. Gene expression profiling studies reveal potential biomarkers, particularly involving TH1 immune response and IFN-γ-driven signalling pathways. The field of omics sciences offers opportunities for novel biomarker discovery. Summary These findings have implications for clinical practice and research. The limitations of established biomarkers underscore the need for improved diagnostic tools in sarcoidosis. The potential of FDG-PET/CT imaging requires further exploration. Gene expression profiling and omics sciences offer avenues for discovering novel biomarkers to enhance diagnosis and predict disease progression. Such advancements can facilitate personalized treatment strategies and improve patient outcomes. Continued research is vital to validate the efficacy and clinical applicability of these biomarkers. Overall, this review emphasizes ongoing efforts to advance sarcoidosis biomarkers research and improve disease management.

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